Home / 12,641.74-18,964.53-4,090.33

Finding the Fourth Proportional to 12,641.74, 18,964.53 and 4,090.33

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Solution

The fourth proportional to 12,641.74, 18,964.53 and 4,090.33 is: 6,136.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,641.74 : 18,964.53 = 4,090.33 : x
  2. Step 2: Convert to fraction form
    12,641.74/18,964.53 = 4,090.33/x
  3. Step 3: Cross multiply
    12,641.74x = 18,964.53 × 4,090.33
  4. Step 4: Simplify right side
    12,641.74x = 77,571,209.70
  5. Step 5: Solve for x
    x = 77,571,209.70/12,641.74
  6. Step 6: Final answer
    x = 6,136.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.